hillary clinton is expected to introduce kerry to the senate committee. president obama picked kerry to succeed clinton after susan rice withdrew her name. soledad. >> john, thanks. >>> an historic announcement happening later today. women will be allowed on the front lines of war. outgoing defense secretary leon panetta and the joint chiefs chairman martin dempsey are set to make the announcement at 1:30 this afternoon. many former service members support the move and say women in support missions have already been drawn into battles in places like iraq and afghanistan and they don't have physical front lines anymore. some serve as military police, others have gone on patrols with ground troops in order to talk to afghan women and children. pentagon correspondent barbara starr is following these developments for us this morning. where is the major opposition to this coming from, barbara? >> reporter: well, good morning, soledad. there are some groups that are opposing it because they have concerns about women serving in the military, frankly, and have ha